body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, code, form, fieldset, legend, input, textarea, p, blockquote, th, td, iframe, button {
    margin: 0;
    padding: 0
}

div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, code, fieldset, legend, p, blockquote, th, td {
    cursor: default
}

table {
    border-collapse: collapse;
    border-spacing: 0
}

caption, th {
    text-align: inherit
}

fieldset, img {
    border: 0
}

:focus {
    outline: 0 none
}

address, caption, cite, code, dfn, em, strong, th, var {
    font-style: normal;
    font-weight: normal
}

h1, h2, h3, h4, h5, h6 {
    font-size: 100%;
    font-weight: bold
}

abbr, acronym {
    border: 0;
    font-variant: normal
}

input, button, textarea, select, optgroup, option {
    font-family: inherit;
    font-size: inherit;
    font-style: inherit;
    font-weight: normal
}

input, button, textarea, select {
    *font-size: 100%
}

blockquote, q {
    quotes: none
}

blockquote:before, blockquote:after, q:before, q:after {
    content: "";
    content: none
}

ol, ul {
    list-style: none
}

textarea {
    resize: none;
    overflow-x: hidden;
    overflow-y: auto
}

body {
    font: 12px/1.5 "Microsoft Yahei", "宋体", Arial, Helvetica, sans-serif;
    background: #fff;
    color: #2b2b2b;
    overflow: visible
}

a {
    color: #7fbcf0;
    text-decoration: none
}

a:hover {
    text-decoration: underline
}

.fl {
    float: left;
    display: inline
}

.fr {
    float: right;
    display: inline
}

.cf {
    display: block;
    zoom: 1
}

* html .cf {
    height: 1%
}

.cf:after {
    content: " ";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden
}

.placeholder {
    color: #b2b2b2
}

input::-webkit-input-placeholder {
    color: #b2b2b2
}

input::-moz-placeholder {
    color: #b2b2b2
}

textarea::-webkit-input-placeholder {
    color: #b2b2b2
}

textarea::-moz-placeholder {
    color: #b2b2b2
}

.text-autocut {
    overflow: hidden;
    white-space: nowrap;
    -webkit-text-overflow: ellipsis;
    -khtml-text-overflow: ellipsis;
    -icab-text-overflow: ellipsis;
    -moz-text-overflow: ellipsis;
    -o-text-overflow: ellipsis;
    text-overflow: ellipsis
}

.text-hide {
    display: block;
    font-size: 0;
    text-indent: -99999em;
    color: transparent
}

body {
    font: 12px/1.5 "Microsoft Yahei", "宋体", Arial, Helvetica, sans-serif;
    background: #fff;
    color: #2b2b2b;
    overflow: visible
}

a {
    color: #7fbcf0;
    text-decoration: none
}

a:hover {
    text-decoration: underline
}

.fl {
    float: left;
    display: inline
}

.fr {
    float: right;
    display: inline
}

.cf {
    display: block;
    zoom: 1
}

* html .cf {
    height: 1%
}

.cf:after {
    content: " ";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden
}

.placeholder {
    color: #b2b2b2
}

input::-webkit-input-placeholder {
    color: #b2b2b2
}

input::-moz-placeholder {
    color: #b2b2b2
}

textarea::-webkit-input-placeholder {
    color: #b2b2b2
}

textarea::-moz-placeholder {
    color: #b2b2b2
}

.text-autocut {
    overflow: hidden;
    white-space: nowrap;
    -webkit-text-overflow: ellipsis;
    -khtml-text-overflow: ellipsis;
    -icab-text-overflow: ellipsis;
    -moz-text-overflow: ellipsis;
    -o-text-overflow: ellipsis;
    text-overflow: ellipsis
}

.text-hide {
    display: block;
    font-size: 0;
    text-indent: -99999em;
    color: transparent
}

body {
    font: 12px/1.5 "Microsoft Yahei", "宋体", Arial, Helvetica, sans-serif;
    background: #fff;
    color: #2b2b2b;
    overflow: visible
}

a {
    color: #7fbcf0;
    text-decoration: none
}

a:hover {
    text-decoration: underline
}

.fl {
    float: left;
    display: inline
}

.fr {
    float: right;
    display: inline
}

.cf {
    display: block;
    zoom: 1
}

* html .cf {
    height: 1%
}

.cf:after {
    content: " ";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden
}

.placeholder {
    color: #b2b2b2
}

input::-webkit-input-placeholder {
    color: #b2b2b2
}

input::-moz-placeholder {
    color: #b2b2b2
}

textarea::-webkit-input-placeholder {
    color: #b2b2b2
}

textarea::-moz-placeholder {
    color: #b2b2b2
}

.text-autocut {
    overflow: hidden;
    white-space: nowrap;
    -webkit-text-overflow: ellipsis;
    -khtml-text-overflow: ellipsis;
    -icab-text-overflow: ellipsis;
    -moz-text-overflow: ellipsis;
    -o-text-overflow: ellipsis;
    text-overflow: ellipsis
}

.text-hide {
    display: block;
    font-size: 0;
    text-indent: -99999em;
    color: transparent
}

#header {
    height: 50px;
    background-color: #1262b7;
    position: relative;
    z-index: 7;
    font-size: 14px
}

#header .change_skin, #header .change_logo, #header .user_log_out, #header .user_setting, #header .user_name {
    text-decoration: none;
    line-height: 50px;
    color: #a7bbdd
}

#header .logo {
    padding-top: 11px;
    margin-left: 59px;
    font-size: 22px;
    color: #fff;
    text-align: center;
    overflow: hidden;
    height: 33px
}

#header .change_logo {
    margin-left: 30px
}

#header .change_skin {
    margin-left: 12px
}

#header .user_log_out {
    margin-right: 23px
}

#header .user_setting {
    margin-right: 6px
}

#header .user_name {
    color: #dee5f2;
    margin-right: 17px
}

#header.student_header {
    height: 60px
}

#header.student_header .logo {
    padding-top: 16px;
    margin-left: 40px;
    text-decoration: none
}

#header .student_opera {
    position: relative;
    float: right;
    right: 25px;
    min-width: 120px;
    height: 52px;
    padding-top: 8px
}

#header .student_opera .student_avatar {
    margin-left: 18px;
    width: 40px;
    height: 40px;
    float: left;
    -webkit-border-radius: 25px;
    -moz-border-radius: 25px;
    border-radius: 25px;
    border: 2px solid #fff
}

#header .student_opera .student_avatar img {
    -webkit-border-radius: 25px;
    -moz-border-radius: 25px;
    border-radius: 25px
}

#header .student_opera .student_name_wrap {
    float: left;
    margin: 14px 10px 0 5px;
    color: #fffefe;
    height: 15px;
    min-width: 50px
}

#header .student_opera .student_name_wrap .student_name {
    padding-right: 5px
}

#header .student_opera .student_name_wrap .student_opera_icon {
    display: inline-block;
    *display: inline;
    *zoom: 1;
    *vertical-align: middle;
    width: 9px;
    height: 7px;
    background: url("../../image/v1/sprite-navicons-student-26-111-2013524.png") 0 -105px no-repeat
}

#header .student_opera .setting_logout_wrap {
    min-width: 120px;
    display: none;
    position: absolute;
    padding: 7px 0;
    top: 60px;
    right: 0;
    width: 100%;
    border: 1px solid #0072c6;
    -webkit-border-radius: 1px;
    -moz-border-radius: 1px;
    border-radius: 1px;
    border-top: 0;
    background-color: #fff
}

#header .student_opera .setting_logout_wrap .student_setting, #header .student_opera .setting_logout_wrap .student_logout {
    display: block;
    height: 30px;
    line-height: 28px;
    text-decoration: none;
    text-align: left;
    background-color: #fff;
    color: #666;
    padding-left: 22px
}

#header .student_opera .setting_logout_wrap .student_setting:hover, #header .student_opera .setting_logout_wrap .student_logout:hover {
    background-color: #e7e7e7;
    color: #666
}

#header .student_opera .setting_logout_wrap .student_setting:active, #header .student_opera .setting_logout_wrap .student_logout:active {
    background-color: #0072c6;
    color: #fff
}

.nav_bg {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: 228px;
    background-repeat: repeat;
    background-image: url('../../image/v1/bg-side-bar-200-2-20130712.png')
}

.side_content {
    width: 228px;
    z-index: 2;
    position: absolute;
    top: 0;
    left: 0;
    font-size: 20px
}

.side_content ul {
    margin-top: 19px
}

.side_content ul li {
    height: 50px
}

.side_content ul li.bottom_line {
    border-bottom: 1px solid #dedede
}

.side_content ul li a {
    text-decoration: none;
    color: #666;
    display: block;
    height: 100%
}

.side_content ul li a .nav_icon {
    display: inline-block;
    margin: 10px 0 10px 58px;
    padding-left: 40px;
    height: 30px;
    line-height: 30px;
    background: url("../../image/v1/icon-manage_sidenav-198-200-20130808.png") 0 0 no-repeat
}

.side_content ul li a *.nav_icon:hover {
    cursor: pointer
}

.side_content ul li a:hover, .side_content ul li .current {
    background-color: #0072c6;
    color: #fff
}

.side_content ul li .nav_home_page .nav_icon {
    background-position: 0 2px
}

.side_content ul li .nav_home_page:hover .nav_icon, .side_content ul li .nav_home_page.current .nav_icon {
    background-position: -173px 2px
}

.side_content ul li .nav_manage_course .nav_icon {
    background-position: 0 -172px
}

.side_content ul li .nav_manage_course:hover .nav_icon, .side_content ul li .nav_manage_course.current .nav_icon {
    background-position: -171px -172px
}

.side_content ul li .nav_manage_student .nav_icon {
    background-position: 0 -41px
}

.side_content ul li .nav_manage_student:hover .nav_icon, .side_content ul li .nav_manage_student.current .nav_icon {
    background-position: -171px -34px
}

.side_content ul li .nav_manage_teacher .nav_icon {
    background-position: 0 -87px
}

.side_content ul li .nav_manage_teacher:hover .nav_icon, .side_content ul li .nav_manage_teacher.current .nav_icon {
    background-position: -173px -85px
}

.side_content ul li .nav_manage_lecture .nav_icon {
    background-position: 0 -128px
}

.side_content ul li .nav_manage_lecture:hover .nav_icon, .side_content ul li .nav_manage_lecture.current .nav_icon {
    background-position: -171px -132px
}

body {
    background: #f8f8f8
}

#main {
    width: 960px;
    min-width: 960px;
    margin: 0 auto;
    padding-bottom: 50px
}

#head {
    background: #e6e6e6;
    color: #999;
    font-size: 30px;
    min-width: 960px;
    height: 80px;
    line-height: 80px
}

#head .head_wrap {
    width: 960px;
    margin: 0 auto
}

#head .back_btn {
    float: right;
    font-size: 14px;
    color: #999
}

.introduce_wrap {
    margin-top: 50px;
    font-size: 18px;
    color: #5b5b5b
}

.introduce_wrap .boxwrap {
    width: 485px;
    vertical-align: top;
    background: #fff;
    padding-top: 15px;
    padding-left: 30px
}

.introduce_wrap .boxwrap .box_row {
    height: 50px;
    line-height: 30px;
    font-size: 16px
}

.introduce_wrap .boxwrap a {
    color: #5b5b5b
}

.introduce_wrap .boxwrap a:hover {
    color: #0072c6;
    text-decoration: none
}

.introduce_wrap h2 {
    color: #666;
    font-size: 18px;
    font-weight: normal;
    margin-bottom: 10px
}

.introduce_wrap h2.style2 {
    color: #333
}

.introduce_wrap .content {
    color: #333;
    line-height: 30px;
    width: 825px;
    font-size: 14px
}

.introduce_wrap .p_img {
    margin-top: 20px
}

.icon_phone {
    vertical-align: middle;
    display: inline-block;
    *display: inline;
    *zoom: 1;
    width: 25px;
    height: 25px;
    margin-right: 16px;
    background: url("../../image/v1/sprite-contact-22-145-2013-0830.png") 0 0
}

.icon_qq {
    vertical-align: middle;
    display: inline-block;
    *display: inline;
    *zoom: 1;
    width: 25px;
    height: 25px;
    margin-right: 16px;
    background: url("../../image/v1/sprite-contact-22-145-2013-0830.png") 0 -41px
}

.icon_email {
    vertical-align: middle;
    display: inline-block;
    *display: inline;
    *zoom: 1;
    width: 25px;
    height: 25px;
    margin-right: 16px;
    background: url("../../image/v1/sprite-contact-22-145-2013-0830.png") 0 -81px
}

.icon_weibo {
    vertical-align: middle;
    display: inline-block;
    *display: inline;
    *zoom: 1;
    width: 25px;
    height: 25px;
    margin-right: 16px;
    background: url("../../image/v1/sprite-contact-22-145-2013-0830.png") 0 -120px
}

#copyright {
    min-width: 960px;
    margin-top: 50px;
    border-top: 1px #cecece solid;
    height: 50px;
    line-height: 50px;
    font-size: 14px;
    color: #999
}

#copyright a {
    color: #5b5b5b
}

#copyright .inr {
    width: 960px;
    margin: 0 auto
}

#copyright .inr ul {
    list-style: none
}

#copyright .inr ul li {
    display: inline;
    margin-left: 40px
}

#copyright .inr ul li.first {
    margin-left: 0
}

#copyright .inr ul li.hotline {
    margin-left: 235px;
    color: #b7b7b7
}

#copyright .inr ul li.device {
    color: #b7b7b7
}